[LinuxBIOS] Pm49FL002 Flash

Li-Ta Lo ollie at lanl.gov
Fri Jun 3 17:33:17 CEST 2005

On Fri, 2005-06-03 at 08:49 -0600, Ronald G. Minnich wrote:
> On Wed, 1 Jun 2005, Hugo MERCIER wrote:
> >   I just wanted to test the probing (No erasing or programming yet).
> > And ... it fails. flash_rom doesn't find anything : the reported IDs
> > bytes are the same as those reported without the probing memory cycles
> > (0x555,0xAAA, ...)
> asus loves to put GPIO enables ont their boards to control flash writes. 
> My guess is you are getting no write cycles to the flash part.
> This is pretty easy to probe for, find the GPIO registers and starting 
> changing them one at a time, and see if at some point you have flash 
> writes working. Some of them, when changed, may reset the board ... so be 
> prepared for that.

I don't think we have flash_enable for the chipset. So writing command 
to the flash part has no effect.

Li-Ta Lo <ollie at lanl.gov>
Los Alamos National Lab

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